Home / 2,616.80-3,923.73-1,057.55

Finding the Fourth Proportional to 2,616.80, 3,923.73 and 1,057.55

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Solution

The fourth proportional to 2,616.80, 3,923.73 and 1,057.55 is: 1,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.80 : 3,923.73 = 1,057.55 : x
  2. Step 2: Convert to fraction form
    2,616.80/3,923.73 = 1,057.55/x
  3. Step 3: Cross multiply
    2,616.80x = 3,923.73 × 1,057.55
  4. Step 4: Simplify right side
    2,616.80x = 4,149,540.66
  5. Step 5: Solve for x
    x = 4,149,540.66/2,616.80
  6. Step 6: Final answer
    x = 1,585.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.